\begin{table}
\centering
\begin{talltblr}[         %% tabularray outer open
caption={Establishment date predicts electoral cycle},
note{}={+ p \num{< 0.1}, * p \num{< 0.05}, ** p \num{< 0.01}, *** p \num{< 0.001}},
note{ }={Regression of the current electoral cycle year on council establishment year with robust standard errors.},
]                     %% tabularray outer close
{                     %% tabularray inner open
colspec={Q[]Q[]},
column{2}={}{halign=c,},
column{1}={}{halign=l,},
hline{6}={1,2}{solid, black, 0.05em},
}                     %% tabularray inner close
\toprule
& (1) \\ \midrule %% TinyTableHeader
(Intercept) & $1982.765$*** \\
& ($10.278$) \\
Establishment year & $0.018$*** \\
& ($0.005$) \\
Num.Obs. & $576$ \\
R2 & $0.017$ \\
R2 Adj. & $0.015$ \\
\bottomrule
\end{talltblr}
\end{table}
